James e



uitrh faire @stniti @ft-ire IMPROVEMENT IN sAWs.

@Lts rlgchtls rcfmt tu in ttm tettctt aimt mit mating tutti its` sume.

TO ALL MWHOM IT MAY CONOERN: y i

Be it known that I, JAMES E. ATWOD, of Trenton, in the county of Mercer, and State of New Jersey, i l have invented a new and improved mode of Inserting Saw Teeth and I do herebydeolnre thst` the; following p p is a full and exact descriptionthereof, reference being had to the accompanying drawings, and to the letters `of .i p U reference marked thereon, in which- Figure 1 is e perspective view. Figure 2, a. section. Figure 3, a. section. t p p Letter A, in fig. 1, is the saw-plate. Letter B is a. chisel-form cutter. Letters c e are common saw-teeth.

Letters H H, in tig. 2, are the form of teeth used in my improvement. Letters E E E'arethe grooves. Letters y. D D D, in iig. 3, are insertions to receive the teeth H H. Letters E E E are corresponding grooves, as iig; v p 2. Letters o o o are the buse for the teeth H H to rest on. I construct my sawplatefin sy ofthelznown` l forms, and insert my improved teeth in the following manner. v I cut out the insertion D D, :ts shown iniig. i p. i 3, with a. common die or punch. The grooves E E E are made by filing o` each side of the insertion so es to form a inale groove; then `I' cutout the teeth H H in the form of iig. 2, The teeth are made one-fourth of sii inch wider than the insertion. Then plane or file out the female groove to iit the corresponding groove in iig.` l l 3. To insert the teeth H H `into the insertion D D D, all thatis needed islto bend the .lower partdof the teeth lH H about the thickness of the saw-plete; then drive said teeth into said groove, a-nd straighten the part bent` back, und it will rest on the bottom, at' o o o then hammer und grind the saw 1in the manner` well knownwto` those skilled in the art. l i i I do'not claim the principle of inserting sew-teeth; but het I do cleim,.a.nd desire tosecure by Letters f t Patent, is-

I claim the teeth H H, when inserted and secured in the manner herein described, and furthe purposes set` forth.

Witnesses:

.T iiuss ROGERS, WM. JOHNSTON.

1 JAMES E. .ATWODL` 

